All About Deaerators

The Often Overlooked and Undervalued Boiler Protectors

  • 10 décembre 2019
  • Author: James McDonald
  • Number of views: 2813
  • 0 Comments
All About Deaerators

Steam boilers do exactly as their name implies, they produce steam; however, may factors must be considered and managed to do this, including corrosion, scale, water minimization, fuel efficiency, safety, and Total Cost of Operation. Boiler feedwater often contains dissolved gases, such as oxygen, carbon dioxide, and ammonia. These dissolved gases are problematic for the boiler system because they may cause corrosion, leading to equipment failures (e.g., carbon dioxide can form carbonic acid in boiler condensate, lowering the pH, and corroding the condensate piping). To minimize corrosion, the dissolved gases must be removed or neutralized. This can be achieved through the use of deaerators, which work to remove such dissolved gases to low levels reducing the amount of follow-up neutralization required (e.g., sulfite-based oxygen scavenging).

RSS

Tags

accumulators activated carbon aerobic bacteria air-cooled alkalinity amines anaerobic bacteria ASHRAE ASHRAE 188 ASHRAE 188-2018 atomizing A-type bacteria biocides biofilm biofouling blowdown blowdown control blowdown rate boiler boiler blowdown control boilers building water system calcium carbonate calculation capacity chapel tubes chilled chillers chlorides cleaning closed loop CMS directive compressor conductivity Control Ranges cooling Cooling System cooling systems cooling tower cooling towers cooling water corrosion Critical Parameters crystal growth modification polymers cycles of concentration dead legs Deaerator dealkalizer demand deposits disinfection dispersants dissolved gases dissolved solids downcomer D-type electric boilers EPS equipment extracellular polymeric substances filter sand filtration fire tube fire tube boilers firetube firetube boilers free halogen galvanic gases greensand halogen hard water hardness high heat flux steam generators hot water how do cooling towers work HVAC hybrid boilers ice ice machine inhibitor lead leak legionella legionella policy legionnaires legionnaire's disease magnesium silicate makeup water media microbial microbiological microorganisms molybdenum neutralizing amines non-oxidizing biocides oxidizing biocides Parameters phosphate phosphonate planktonic bacteria plastics plastics manufacturing preatreatment pretreatment preventative maintenance protozoa refrigeration residual retrograde solubility reverse osmosis risk risk management sanitizing scale sediment filtration sessile bacteria silica softener solids spray scrubber spray-type stagnant steam steam boiler steam boilers sterilization testing threshold inhibitors tray-type vapor compression venting vertical boilers volume volume estimation water loss water management water management plan water treatment water tube water tube boilers water-cooled watertube watertube boilers WMP